INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

Introduced: January 2000

Description

F21Y is an indexing classification used to supplement and cross-reference documents related to light sources and light emission characteristics within the F21 lighting branch. It organizes patents by specific attributes such as the physical form of light sources (incandescent, fluorescent, LED, laser) and the color or spectral properties of emitted light. This classification facilitates retrieval and grouping of related technologies that share common source types or light characteristics across multiple primary lighting subclasses. F21Y does not independently classify inventions but serves as an auxiliary tool for systematic indexing and patent family navigation in the lighting field.

Title

Titles differ between systems:

IPC: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , , and , RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

CPC: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

Full Title

Full titles differ between systems:

IPC:

INDEXING SCHEME ASSOCIATED WITH SUBCLASSES , , and , RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

CPC:

INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

Of 16 combined children, 0 exist in both systems.

8 codes are CPC-only extensions, 8 exist only in IPC.

Note: 8 CPC extensions are marked as secondary classification only.

IPC defines codes here since 2000.

Child Classifications

Navigate with arrow keys, Enter to open

F21Y 101/00 Point-like light sources since 2000 IPC only IPC only
F21Y 103/00 Elongate light sources, e.g. fluorescent tubes since 2000 −3 IPC IPC only IPC only
F21Y 105/00 Planar light sources since 2000 −1 IPC IPC only IPC only
F21Y 107/00 Light sources with three-dimensionally disposed light-generating elements since 2016 −9 IPC IPC only IPC only
F21Y 109/00 Light sources with light-generating elements disposed on transparent or translucent supports or substrates since 2016 IPC only IPC only
F21Y 111/00 Light sources of a form not covered by groups since 2000 IPC only IPC only
F21Y 113/00 Combination of light sources since 2000 −2 IPC IPC only IPC only
F21Y 115/00 Light-generating elements of semiconductor light sources since 2016 −3 IPC IPC only IPC only
F21Y 2101/00 Point-like light sources 2nd only CPC only CPC only
F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes 2nd only +3 CPC CPC only CPC only
F21Y 2105/00 Planar light sources 2nd only +1 CPC CPC only CPC only
F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements 2nd only +9 CPC CPC only CPC only
F21Y 2109/00 Light sources with light-generating elements disposed on transparent or translucent supports or substrates 2nd only CPC only CPC only
F21Y 2111/00 Light sources of a form not covered by groups F21Y2101/00-F21Y2107/00 2nd only CPC only CPC only
F21Y 2113/00 Combination of light sources 2nd only +3 CPC CPC only CPC only
F21Y 2115/00 Light-generating elements of semiconductor light sources 2nd only +3 CPC CPC only CPC only